.ycm_extra_conf.py

   1 import ycm_core
   2 import glob
   3 import os
   4
   5 flags = [
   6         '-Wall',
   7         '-Wextra',
   8         '-Werror'
   9         '-pedantic',
  10         '-std=c++11',
  11         '-I.',
  12         '-Isrc',
  13         '-isystem', '/usr/include',
  14         '-isystem', '/usr/local/include',
  15 ]
  16
  17 def DirectoryOfThisScript():
  18         return os.path.dirname(os.path.abspath(__file__))
  19
  20 compilation_database_folder = DirectoryOfThisScript() + '/build'
  21
  22 if os.path.exists( compilation_database_folder ):
  23         database = ycm_core.CompilationDatabase( compilation_database_folder )
  24 else:
  25         database = None
  26
  27 SOURCE_EXTENSIONS = [ '.cpp', '.cxx', '.cc', '.c', '.m', '.mm' ]
  28
  29 def DirectoryOfThisScript():
  30         return os.path.dirname( os.path.abspath( __file__ ) )
  31
  32 def MakeRelativePathsInFlagsAbsolute( flags, working_directory ):
  33         if not working_directory:
  34                 return list( flags )
  35         new_flags = []
  36         make_next_absolute = False
  37         path_flags = [ '-isystem', '-I', '-iquote', '--sysroot=' ]
  38         for flag in flags:
  39                 new_flag = flag
  40
  41                 if make_next_absolute:
  42                         make_next_absolute = False
  43                         if not flag.startswith( '/' ):
  44                                 new_flag = os.path.join( working_directory, flag )
  45
  46                 for path_flag in path_flags:
  47                         if flag == path_flag:
  48                                 make_next_absolute = True
  49                                 break
  50
  51                         if flag.startswith( path_flag ):
  52                                 path = flag[ len( path_flag ): ]
  53                                 new_flag = path_flag + os.path.join( working_directory, path )
  54                                 break
  55
  56                 if new_flag:
  57                         new_flags.append( new_flag )
  58         return new_flags
  59
  60
  61 def IsHeaderFile( filename ):
  62         extension = os.path.splitext( filename )[ 1 ]
  63         return extension in [ '.h', '.hxx', '.hpp', '.hh' ]
  64
  65
  66 def GetCompilationInfoForFile( filename ):
  67         # The compilation_commands.json file generated by CMake does not have entries
  68         # for header files. So we do our best by asking the db for flags for a
  69         # corresponding source file, if any. If one exists, the flags for that file
  70         # should be good enough.
  71         if IsHeaderFile( filename ):
  72                 basename = os.path.splitext( filename )[ 0 ]
  73                 for extension in SOURCE_EXTENSIONS:
  74                         replacement_file = basename + extension
  75                         if os.path.exists( replacement_file ):
  76                                 compilation_info = database.GetCompilationInfoForFile(
  77                                         replacement_file )
  78                                 if compilation_info.compiler_flags_:
  79                                         return compilation_info
  80                 return None
  81         return database.GetCompilationInfoForFile( filename )
  82
  83
  84 def FlagsForFile( filename, **kwargs ):
  85         if database:
  86                 # Bear in mind that compilation_info.compiler_flags_ does NOT return a
  87                 # python list, but a "list-like" StringVec object
  88                 compilation_info = GetCompilationInfoForFile( filename )
  89                 if not compilation_info:
  90                         return None
  91
  92                 final_flags = MakeRelativePathsInFlagsAbsolute(
  93                         compilation_info.compiler_flags_,
  94                         compilation_info.compiler_working_dir_ )
  95
  96                 # NOTE: This is just for YouCompleteMe; it's highly likely that your project
  97                 # does NOT need to remove the stdlib flag. DO NOT USE THIS IN YOUR
  98                 # ycm_extra_conf IF YOU'RE NOT 100% SURE YOU NEED IT.
  99                 try:
 100                         final_flags.remove( '-stdlib=libc++' )
 101                 except ValueError:
 102                         pass
 103         else:
 104                 relative_to = DirectoryOfThisScript()
 105                 final_flags = MakeRelativePathsInFlagsAbsolute( flags, relative_to )
 106
 107         return {
 108                 'flags': final_flags,
 109                 'do_cache': True
 110         }